Bearing



Jan. 8, 1935. H. sTBBs BEARING Filed Feb. 10, 1931 &x &\

INVENTOR BY 7 %W ATTORNEY Patented Jan.` 8, 1935 BEARINGV i Harry Stibbs, Vandalia, Ohio e I,

10, 1931, Serial No. 51 1399 i Application February,

My invention relates to bearings` and particularly to bearings which-are designed for use in ovens or the likewhere the bearings are subjected to high temperatures. i

In large ovens which are employed for baking enamel on such objects as automobile fenders or for heating objeots to high temperatures for other purposes, the objects are usually moved slowly through the 'oven by 'means of a conveyor, usually a conveyor of the mono-rail type. The conveyor chain is supported at each-turn by mean's of an idler wheel. i i 1,

In thepast, great difficultyhas"been encountered inaobtaining a bearing for the idler wheel that would operate at the required high temperatures. This difiiculty has been causedby the expansionand warping of the hearing parts and also by relative movement between' the-bearing supports as a. result oi -the expansion of'the" sup- Porting structure. i I Furthermore, lubri'cating *oil has' 'atende'ncyto carbonize at-high temperatures and tighten the hearing. I

.An object of my invention is to provide a liquidcooled hearing of the above-mentioned' type for idler wheels'or other rotatable parts subjected to high temperatures.

A further object of `my invention is to provide a hearing of the aboVe-mentioned type which will not bind when the supporting members get out of alignment.

In practicing my invention, I provide the upper side of the idler wheel with a liquid-tight cupshape portion in which a self -aligning' ball hearing is mounted. The idler wheel is further supported by means of a second self-aligning hearing mounted in a cup-shape member supported beneath the idler wheel. e

Other features and advantages of my invention will appear from the following description taken in connection ,with the following drawing in which, i

' Figure 1 is a plan View of a portion of an oven structure and of an idler wheel which is supported by means of a hearing constructed in accordance r with my invention.

' oven wall 9 and the supporting beams 11.

further supported from the beams ll by means 'of the members 13 which are bolted. or otherwise astened to the'channe'l irons 12 and beams l1 The idler wheel 10 is supported between the beams 11 and thechannel irons 12 by means of 5 the two self-aligning ball bearings 14 and 15, the bea'ring 14 being supported from'the-beams 11 and the hearing 15 --being`= supported from the channel irons 12.* 'Because of the two self-aligning' bearings, the idler' wheel 10' willjrotate' freely even 1'0 y pin'19' which is fitted'into-"a block 2Obolted-to the beams 11.

I The pin 19 which extends through the -top of the oven, has a hole drilled through the center thereof to admit a pipe 'whichfsupplies cooling fluid to the hearing 14, r epmu and block -20 hold the"` inner hearing ring' I`8` ri`g'i'd' with respect to the top of the oven. v

A self-aligning ring 21 having a curved outer surface is fitted into the outer bearing ring 17 and ball bearings 22 are held between the selfaligning ring 21 and the inner ring 18. y The lower side of the idler wheel 10 is supported by means of a pin 23 which fits tightly into the bottom of the wheel. The lower end of the pin 23 fits tightly into the inner ring 24 of the ball hearing 15;

The ball bearing 15 is mounted inside a cupshape support 25 having feet 26 which are bolted to the channel irons 12. The outer ring 27 is fitted tightly into the cup-shape support 25 and a self-aligning ring 28 and ball bearings 29 are held between the inner ring 24 and outer ring 27 as described above.

The bear-ing structure is cooled as follows: The water or other cooling fluidis fed from the pipe 30 through the pin 19 to the cup portion 16 inside the oven. As the cup portion 16 lls with water, the water passes between the ball bearings 22 and fiows out of the cup 16 through the'passageway 31 in the cup 16 and idler wheel 10.

The waterflows from the passageway 31 to the lower bearing 15. It then passes from the cup 2.5 to a point outside the oven through a drain p pe 33` r opening 43 and the space 44 between the pin 19' and pipe 30. u i The term "ball bearings" as used in the claims includes both ball bearings and roller bearing's.

Various modifications may be madein my jni vention without departing from the spirit and scope thereof, and I `desine;there'fom, that only such limitations shall be placed ther-san as vare h imposed by the prior art and are set forth in the appended claims. i e j i i i I claim as my inva-mon.: u

.1,- supporting structure for 'a` rotatable elementsubje ed e hish emp ratura comprising a eup sh pe :port on on 'the top of said element, aa' seif-aligm'ns ar-ing mountei in, said upshape pomongtor supper-tme the rupnerside :of said e ement, a c p shape p ow po it ns! 'b low id rotatable element, a self slig mg a in m uted; in sa d cup-' ave s ppor for supporting 'the lowrside otsaid element, and means .torsupn ying a ontnuous orco linemid to seid bearines. I j r An dlemwheel f r m-ven onveyo' chain comprising a wheel rotatably mowtedon aver t l anisa sup-shane elemnt annthe top oim whe l and integralth vewith.- ,a ele-i m n- ;b low'sa d wheel. sa d rotatable :countin inc uding a se ali ingv ball hearing located with s id .fi st upsbaement and@ sec a d lt aligning :basri-nz hosted within said se ond up hape lement, means for supplying;

a su stantially continuous flow ;of cooling liquid to said be r ngs. andrmeam fo prcventms quid om' ompletely fi ling 'sa d up- &ha elements. 4 r j r a. upporting structure .tor a rotatable element subjected to high temperatures comprising a cupshape portion on the upper side of said element, means comprising a ball bearing mounted insaid cup-shape portion for supporting said element, means for 'supplying a continuous flow of cooling liquid to said hearing,- said last means including a cooling liquid inlet having its inlet opening located below said ball-bearing and a cooling liquid 'outlet having its outlet opening located above said hearing, the passage-way oi said outlet being located in thewall of &said e p-shape portion, a second ball bearing for supporting said rotatableelement, said second 'bear-ing being mounted in a cup-shape element positioned below said rotatable element and beneath the outof said passage-way whereby the cooling liquid flows from said first cup-shape portion into eaid second cup-shape portion.

4. supporting structure for a rotatable element subjected to high temperatures comprising a cupshane portion .the upper side of 'saidalex-nent,

a cup-sham portion located below element", -a 'ball bearing mounted inisaidivfirst cup-snap::

portion, a second ball bearinglocated in'sadsecond cup -shape portionLand means formintai ning ,both of 'said bearings immersed in -a cun inuous flow of freshcoolng liquid. v e 5. In an oven having'anelement therein rotatable .about ;a ..vertical axis. said 'elementhavns a cup-sham portionon the'top'thereai; a self-alignin hall hearing located..in*'sai`ri.

shape portion for supporting said elementg sil' selIealigni-ng ballbearing being supported Irom a shaft Secured to struotural membersat the top of the oven.; a short vertical ,shaft extending' from the ;bottom of 'Saidi first eflementsand` hav ing a selfaligning ball hearing secured'flereto, means for l supporting said .second b'll hearing comprising a. second cup shape* portion within which said ball bearing is positioed, saidsebond cup-shane' portion being 'Secured to other' ;strucur lvmembers in saidoven, and means for :keeping said cup-shape portions sufiiciently filled with' a continuous flow of cooling liquid to immerse said bearings; v

, i HARR Y S'I'IBBS 

